EP 0689920 A3 19960710 - Method and apparatus for the continuous production of foam plastic blocks or sheets
Title (en)
Method and apparatus for the continuous production of foam plastic blocks or sheets
Title (de)
Verfahren und Vorrichtung zum kontinuierlichen Herstellen von Schaumstoffblöcken oder Schaumstoffbahnen
Title (fr)
Procédé et dispositif pour la production en continu de blocs ou de feuilles en mousse plastique
Publication
Application
Priority
DE 4422762 A 19940629
Abstract (en)
[origin: EP0689920A2] In prodn. of foam blocks, foam mixture (13) is supplied from a mixing head (2) onto a moving lower film (4) while an upper film (8) is guided by a diverter (10) into contact with the foam mixture (13). The diverter (10) is flat and creates a constant rectangular cross-section channel between upper (8) and lower (4) films. Channel length (L) is a multiple of mean channel ht (Hm. Channel ht (He at entry is adjusted to a fixed dimension while the channel outlet ht (Ha) is controlled in response to the foam pressure on the diverter (10). Process plant includes a mixing head (2) guides for lower (4) and upper (8) films and a long, flat diverter plate (10) for parallel alignment of the upper film (8) with the lower (4) film and creation of the rectangular channel. The inlet end of the diverter (10) has an adjuster (11) to vary inlet ht (He) and swivels on an axle (17) at right angle to the flow direction. A compensating system 12,15,16) applies variable force to the outlet end of the diverter (10) to counteract swivelling movement and maintains a parallel channel. <IMAGE>
IPC 1-7
IPC 8 full level
B29C 39/02 (2006.01); B29C 39/14 (2006.01); B29C 39/22 (2006.01); B29C 39/44 (2006.01); B29C 44/46 (2006.01); B29K 75/00 (2006.01); B29K 105/04 (2006.01)
CPC (source: EP KR US)
B29C 44/30 (2013.01 - KR); B29C 44/321 (2016.10 - KR); B29C 44/467 (2013.01 - EP KR US); B29C 44/60 (2013.01 - KR); B29L 2007/002 (2013.01 - KR); B29L 2031/7722 (2013.01 - KR)
Citation (search report)
- [X] GB 1476177 A 19770610 - HERNANDO ROMANILLOS F
- [X] US 4267135 A 19810512 - STROUD RICHARD M, et al
- [A] FR 2446165 A1 19800808 - STRATIFIES STE INDLE
- [A] DE 3241520 A1 19840510 - HENNECKE GMBH MASCHF [DE]
- [A] EP 0021564 A1 19810107 - ICI PLC [GB]
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0689920 A2 19960103; EP 0689920 A3 19960710; EP 0689920 B1 19991013; DE 59507025 D1 19991118; ES 2139778 T3 20000216; JP 3425273 B2 20030714; JP H0811140 A 19960116; KR 100343919 B1 20021104; KR 960000449 A 19960125; NO 309315 B1 20010115; NO 952598 D0 19950628; NO 952598 L 19960102; US 5665286 A 19970909
DOCDB simple family (application)
EP 95109419 A 19950619; DE 59507025 T 19950619; ES 95109419 T 19950619; JP 18322695 A 19950628; KR 19950018156 A 19950629; NO 952598 A 19950628; US 49308295 A 19950621